Thermopower and Surface Magnetic Characterization of Ni Thin Layers

A. Szaboa, R. Vargab, F. Ujhelyic, V. Komanickyb, A. Zorkovskab, A. Lovasa aDept. of Automob. and Vehicle Manuf., Budapest Univ. of Techn, Stoczek u. 2. 1111 Budapest, Hungary bDept. of Cond. Mat. Phys., Institute of Phys. P.J. Šafárik University, Park Angelinum 9 041 54 Košice, Slovakia cDept. of Atomic Phys., Budapest Univ. of Techn., Budafoki u. 8. 1111 Budapest, Hungary

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Thermoelectric power and surface magnetic characterization of Ni evaporated layers will be presented, with the comparison with the bulk Ni material. The bulk electrical and magnetic properties are developed gradually, approaching the bulk properties, as the layer thickness increases. Below the thickness of 180 nm, the evaporated layers are amorphous. The epitaxial stresses can appear in both, the anomaly observed in the thermopower and the surface coercivity measurements.

DOI: 10.12693/APhysPolA.126.204 PACS numbers: 72.15.Jf, 73.50.Lw, 75.70.-i, 68.55.jm